Goodwill and Other Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Expenses	$ 1,393,000	$ 831,000	$ 304,000
Carrying amount	14,850,000	9,118,000
Accumulated amortization	2,525,000	1,170,000
Net	12,325,000	7,948,000
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2013	1,544,000
2014	1,618,000
2015	1,618,000
2016	1,610,000
2017	1,438,000
Thereafter	4,497,000
Total	12,325,000	7,948,000
Goodwill [Abstract]
Beginning balance	8,117,000	5,825,000
Foreign currency translation adjustments	54,000	(142,000)
Ending balance	10,387,000	8,117,000	5,825,000
Radius Medical Technologies, Inc. [Member]
Goodwill [Abstract]
Purchased licenses & acquisitions		10,000
Zerusa Limited [Member]
Goodwill [Abstract]
Purchased licenses & acquisitions		2,424,000
Accumed Systems, Inc [Member]
Goodwill [Abstract]
Purchased licenses & acquisitions	562,000
St Jude Medical [Member]
Goodwill [Abstract]
Purchased licenses & acquisitions	1,444,000
Shepherd Scientific, Inc [Member]
Goodwill [Abstract]
Purchased licenses & acquisitions	210,000
Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life	11 years
Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life	9 years
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life	9 years
Carrying amount	620,000	230,000
Accumulated amortization	74,000	43,000
Net	546,000	187,000
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Total	546,000	187,000
Trademark/Tradename [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Carrying amount	2,170,000	1,820,000
Accumulated amortization	390,000	214,000
Net	1,780,000	1,606,000
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Total	1,780,000	1,606,000
Trademark/Tradename [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life	11 years
Trademark/Tradename [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life	10 years
Purchased Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Carrying amount	7,960,000	6,200,000
Accumulated amortization	1,555,000	873,000
Net	6,405,000	5,327,000
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Total	6,405,000	5,327,000
Purchased Technology [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life	11 years
Purchased Technology [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life	9 years
Purchased Licenses [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Remaining Amortization Period	5 years
Carrying amount	4,150,000	900,000
Accumulated amortization	505,000	0
Net	3,645,000	900,000
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Total	3,645,000	900,000
Purchased Licenses [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life	10 years
Purchased Licenses [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life	5 years
Foreign Currency Translation Adjustments [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Carrying amount	(50,000)	(32,000)
Accumulated amortization	1,000	40,000
Net	(51,000)	(72,000)
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Total	$ (51,000)	$ (72,000)